vsto - VB - 在Outlook插件中查找列中的最后一个单元格

Question

如何从vsto outlook插件搜索excel表单中的最后一个空单元格？

我有以下代码（未编译）

Imports Excel = Microsoft.Office.Interop.Excel 
Dim ExcelApp As New Excel.Application 
Dim ExcelWorkbook As Excel.Workbook 
Dim ExcelWorkSheet As Excel.Worksheet= ExcelWorkbook.Worksheets(1) 
Dim ExcelRange As Excel.Range = ExcelWorkSheet.Range("A1","A600") 

Dim currentFind As Excel.Range = Nothing 
Dim firstFind As Excel.Range = Nothing 

currentFind = ExcelRange.Find("*", , Excel.XlFindLookIn.xlValues, Excel.XlLookAt.xlPart, Excel.XlSearchOrder.xlByRows, Excel.XlSearchDirection.xlNext, False) 

      While Not currentFind Is Nothing 

       ' Keep track of the first range you find. 
       If firstFind Is Nothing Then 
        firstFind = currentFind 

        ' If you didn't move to a new range, you are done. 
       ElseIf currentFind.Address = firstFind.Address Then 
        Exit While 
       End If 

       currentFind = ExcelRange.FindNext(currentFind) 
      End While 

ExcelWorkbook.ActiveSheet.range(currentFind).Select() 

我已经更新它根据斯科特·霍尔茨曼的意见，但现在我得到一个错误信息：HRESULT：0x800A03EC

Answer 1

解决：我有以下代码（现正整理！）

Imports Excel = Microsoft.Office.Interop.Excel 
Dim ExcelApp As New Excel.Application 
Dim ExcelWorkbook As Excel.Workbook 
Dim ExcelWorkSheet As Excel.Worksheet= ExcelWorkbook.Worksheets(1) 

Dim LastRow As Integer 

LastRow = ExcelWorkSheet.Columns(1).Find("*", , , , Excel.XlSearchOrder.xlByColumns, Excel.XlSearchDirection.xlPrevious).Row 

ExcelWorkSheet.Range("A" & LastRow).Select() 

我的错误是在实际的属性库的选择。谨防选择： XlSearchOrder .xlByColumns，Excel。 XlSearchDirection .xl上一页

Answer 2

的代码不具备根据对象模型的正确层次。

如果没有先定义一个Worksheet对象，则无法定义对象Range，该对象在可以定义之前需要一个对象Workbook。

试试这个：

Set ExcelApp = New Excel.Application 

Dim ExcelWorkbook as Excel.Workbook 
Set ExcelWorkbook = ExcelApp.Workbooks.Open("myPath") 'actually opens a workbook to work with 

Dim ExcelWorksheet as Excel.Worksheet 
Set ExcelWorksheet = ExcelWorkbook.Worksheets("mySheet") 

Dim currentFind As Excel.Range = Nothing 
Dim firstFind As Excel.Range = Nothing 

Dim Fruits As Excel.Range = ExcelWorksheet.Range("A1", "A200") 
Set currentFind = Fruits.Find("apples", , Excel.XlFindLookIn.xlValues, Excel.XlLookAt.xlPart, Excel.XlSearchOrder.xlByRows, Excel.XlSearchDirection.xlNext, False) 


... 


Set currentFind = Fruits.FindNext(currentFind)